<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片示图区域 -->
    <el-card>
      <!-- 搜索与添加区 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            clearable
            @clear="getUserList"
            placeholder="请输入内容"
            v-model="queryInfo.query"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList()"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">
            添加用户
          </el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table border :data="userList">
        <!-- 添加索引列 -->
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
              @change="userStateChanged(scope.row)"
              v-model="scope.row.mg_state"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <!-- eslint-disable-next-line -->
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              :enterable="false"
              effect="dark"
              content="分配角色"
              placement="top"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"

              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主题区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false"> 取 消 </el-button>
        <el-button type="primary" @click="addUser"> 确 定 </el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog
      @close="editDialogClosed"
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input disabled v-model="editForm.username"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
        </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false"> 取 消 </el-button>
        <el-button type="primary" @click="editUserInfo"> 确 定 </el-button>
      </span>
  </el-dialog>
  <!-- 分配角色的对话框 -->
  <el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%"
  @close="setRoleDialogClosed"
  >
  <div>
    <p>当前的用户：{{userInfo.username}}</p>
    <p>当前的角色：{{userInfo.role_name}}</p>
    <P>分配新角色
    <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
  </P>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    //验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      //验证邮箱的正则表达式
      const regEmail = /^([a-zA-z0-9_-])+@([a-zA-z0-9_-])+(\.[a-zA-z0-9_-])+/;

      if (regEmail.test(value)) {
        //合法邮箱
        return cb();
      }
      cb(new Error("请输入合法的邮箱"));
    };
    //验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      //验证手机号的正则表达式
      const regMobile =
        /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;

      if (regMobile.test(value)) {
        return cb();
      }

      cb(new Error("请输入合法手机号"));
    };

    return {
      //已选中的角色Id值
      selectedRoleId:'',
      //所有角色数据列表
      rolesList:[],
      //需要被分配角色的用户信息
      userInfo:{},
      //控制分配角色对话框的显示与隐藏
      setRoleDialogVisible:false,
      //获取用户列表的参数对象
      queryInfo: {
        query: "",
        //当前页数
        pagenum: 1,
        //当前每页显示多少条数据
        pagesize: 2,
      },
      userList: [],
      total: 0,
      mg_status: "",
      //控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //添加用户表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      //添加表单验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名称", trigger: "blur" },
          { min: 3, max: 9, message: "长度在 3 到 9 个字符", trigger: "blur" },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "长度在 6 到 15 个字符",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      //控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //查询到的信息对象
      editForm: {},
      //修改表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) return this.$message.error("获取用户失败");
      this.userList = res.data.users;
      this.total = res.data.total;
    },
    //监听pagesize改变的时间
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    //监听页码值改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    //监听switch开关状态变化
    // 监听 switch 开关状态的改变
    async userStateChanged(userinfo) {
      //console.log(userinfo);
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error("更新用户状态失败！");
      }
      this.$message.success("更新用户状态成功！");
    },
    //监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    //点击按钮 添加用户
    addUser() {
      //valid为校验结果 true or false
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return;
        //可以发起添加用户的网络请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) {
          return this.$message.error("添加用户失败！");
        }
        this.$message.success("添加用户成功！");
        //隐藏添加用户的对话框
        this.addDialogVisible = false;
        //重新获取用户列表
        this.getUserList();
      });
    },
    //展示编辑用户的对话框
    async showEditDialog(id) {
      // console.log(id)
      const { data: res } = await this.$http.get("users/" + id);

      if (res.meta.status !== 200) {
        return this.$message.error("查询用户信息失败！");
      }

      this.editForm = res.data;
      this.editDialogVisible = true;
    },
    //监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    //修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return this.$message.error("校验不通过");
   
        //发起修改用户信息的数据请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          { 
            email: this.editForm.email,
           mobile: this.editForm.mobile
          }
        );
        if (res.meta.status !== 200) {
           return this.$message.error("更新用户失败");
        }
        //关闭对话框
        this.editDialogVisible = false;
        //刷新数据列表
        this.getUserList();
        //提示修改成功
        this.$message.success("修改成功");
        //console.log(valid)
      });
    },
    //根据Id删除对应的用户信息
    async removeUserById(id){
      //弹框询问用户是否删除数据
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => {
          return err
        })
      //如果用户确认删除，则返回值为字符串confirm
      //如果用户取消删除。则返回值为字符串cancel
      if(confirmResult !=='confirm'){
        return this.$message.info('已取消删除')
      }
      const {data:res} = await this.$http.delete('users/' + id)
        if(res.meta.status!==200){
          return this.$message.error('删除用户失败')
        }
          this.$message.success('删除用户成功')
          this.getUserList()
   },
   //展示角色分配的对话框
     async setRole(userInfo){
         this.userInfo = userInfo
          //在展示对话框之前展示所有的角色列表
         const {data:res} =await this.$http.get('roles')
          if(res.meta.status!==200)return this.$message.error('获取角色列表失败')
          this.rolesList=res.data;
          this.setRoleDialogVisible=true;
      },
      //点击按钮分配角色
      async saveRoleInfo(){
        if(!this.selectedRoleId){
          return this.$message.error('请选择要分配的角色')
        }
        const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
        if(res.meta.status!==200){
          return this.$message.error('更新角色失败')
        }
        this.$message.success('更新角色成功')
        this.getUserList()
        this.setRoleDialogVisible=false
      }
  },
  //监听分配角色对话框的关闭事件
  setRoleDialogClosed(){
    this.selectedRoleId=''
    this.userInfo=''
  },
};
</script>

<style lang="less" scoped>
</style>